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PubMed · 9215249

Cellular inflammatory responses and mediator release during early developing late-phase allergic cutaneous inflammatory responses: effects of cetirizine.

P C Atkins·B Zweiman·A Moskovitz·C von Allmen·M Ciliberti
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Abstract

BACKGROUND: Events in developing cutaneous late-phase allergic reactions can be characterized by a combination of skin chamber and biopsy approaches. In some previous studies, cetirizine reportedly inhibited mediator release and/or inflammatory cell responses in late-phase reactions. OBJECTIVE: This study was carried out to determine the effects of cetirizine on early late-phase reactions by using skin chamber and skin biopsy specimens. METHODS: Skin chamber responses during a 6-hour challenge with pollen antigens were assessed in 15 sensitive subjects during randomized, crossover treatment with cetirizine (20 mg/day) or placebo for 7-day periods with measurements of humoral and cellular components. Biopsy specimens of the underlying dermis were obtained. RESULTS: During cetirizine treatment, there was significant (p < 0.01) inhibition of immediate wheal and flare reactions to pollen antigens (34, 46%), codeine (41, 65%), and histamine (38, 68%). However, gross late-phase reactions at 6 hours were unaffected. During both cetirizine and placebo treatment, there was significantly greater accumulation at antigen sites in: (1) skin chamber levels of histamine, total cells, lactoferrin, and eosinophil cationic protein; (2) eosinophils (total and activated) on appended cover glasses; (3) deposition of lactoferrin and eosinophil cationic protein in the underlying dermis. However, these responses were not significantly different during cetirizine treatment compared with placebo treatment periods. CONCLUSION: A persistent pattern of inflammatory cell accumulation with release of granule proteins during early late-phase reactions was unaffected by cetirizine treatment.

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AntigensCell AdhesionCell MovementCetirizineDermatitis, AtopicDiffusion Chambers, CultureHistamine ReleaseHumansInflammation MediatorsIntradermal TestsNeutrophil ActivationPollenClinical TrialJournal ArticleRandomized Controlled TrialResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, P.H.S.

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P C Atkins, B Zweiman, A Moskovitz, C von Allmen, M Ciliberti. 1997. Cellular inflammatory responses and mediator release during early developing late-phase allergic cutaneous inflammatory responses: effects of cetirizine.. https://doi.org/10.1016/s0091-6749(97)80015-2

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